Introduction: Nailfold capillaroscopy is a simple, safe andnoninvasive method, essential in the evaluation of the microcirculationin vivo, and crucial to distinguish betweenprimary or secondary Raynaud’s phenomenon. Raynaud’sphenomenon assumes its major importance in the spectrumof systemic sclerosis diseases showing the early involvementand the vascular changes in the microcirculationbefore the onset of other ...